""ET TROJAN MSIL/Whitesnake Variant Stealer Sending System Info via Telegram (GET)""

SID: 2045267

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_05_01, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2023_05_01

Reference:

  • md5

  • f6f9100b5172b027d3a626d8396791af

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "Content-Type|3a 20|application/json|0d 0a|"

  • Value: "|7b 22 6f 6b 22 3a 74 72 75 65 2c 22 72 65 73 75 6c 74 22 3a|" Depth: 20

  • Value: "|22|is_bot|22 3a|true|2c|"

  • Value: "OS|3a 20|Microsoft Windows|20|"

  • Value: "Compname|3a 20|"

  • Value: "|22|url|22 3a 22|https|3a 2f 2f|transfer|2e|sh/get/"

Within:

PCRE:

Special Options:

  • http_stat_code

  • http_header

  • file_data

  • fast_pattern

source